Is the CuLator Still Working When Puffed Up?

We get questions about if CuLator is working and when you know it is finished and needs to be replaced.

Here is an example of a question:

Love your product my pool had very high copper levels after 4 days my bag is blue and puffed up. Should I take it out if it is puffed up ? I bought the 1.0 and seems to really be working so I purchased the 4.0 also!

Here is an answer:

When the CuLator is puffed up, it means the CuLator polymers have “hydrated”.  This is normal and does not mean all the metals have been removed from the water.  When the contents of the CuLator bag shrink to half their size, or the contents feel watery or like pebbles inside, then it is time to replace the CuLator.  This may take 1-3 months with the CuLator 1.0 and up to 6 months with the CuLator Ultra 4.0.

When the contents of the bag turns blue (or another color), that indicates that metals are being removed from the water.  The best way to see if metals are being removed is to hold the bag up to the light (with the light behind the bag) and see if there is a color INSIDE the bag.

If the bag is “puffy” it still has capacity to remove metals from the water.  If you aren’t sure you can always call Periodic Products at 954-764-7654.